A pilot first spotted the whale last week. What caused the whale’s death isn’t yet known.

A dead male grey whale that was found floating between Sidney Island and James Island on Thursday has been towed to Fisheries and Oceans Canada's Institute of Ocean Sciences in Sidney for a necropsy.

The Marine Mammal Center and California Academy of Sciences are reporting cause of death for one.

The whale is located in an inaccessible place where scientists are unable to take a necropsy.

NOAA has declared an “unusual mortality event” for gray whales on the North American west coast and launched an investigation.

A dead grey whale was found floating in Boundary Bay, near the United States border, this week. It's the sixth grey whale to have been found dead in B.C. waters this year.

An alarming number of gray whales have been found dead this year from Mexico to Alaska, triggering a federal investigation into what’s causing the die-off.

Gray whales are dying at twice the usual rate as a brutal migration unfolds, with whales washing up on Washington state beaches, apparently starved to death.